— Try PopSci.com for unusual gifts in the tools and gadgets categories, also information on how to make your own Twinkies. Real guys like tools, maybe Twinkies too.

— Try entering a search term for anything that you think might appeal to the person in mind: toy trains, floats for walking on water, remote-controlled planes, bracelets that count your steps, etc. Bob is giving his five-year-old grandson a digital microscope. What the microscope sees shows on the computer screen.